Benzylamine-assisted noncovalent exfoliation of graphite-protecting Pt nanoparticles applied as catalyst for methanol oxidation

Chun Han Hsu, Hsin Yi Liao, Yi Fang Wu, Ping Lin Kuo

Research output: Contribution to journalArticlepeer-review

24 Citations (Scopus)

Abstract

A novel method has been developed to physically exfoliate graphite and uniformly disperse Pt nanoparticles on graphite nanoplates without damaging the graphene structures. A stable aqueous suspension of graphite nanoplates was achieved by benzylamine-assisted noncovalent fuctionalization to graphite and characterized by transmission electron microscopy, X-ray diffraction and Raman spectroscopy. A uniform dispersion of Pt nanoparticles was then prepared on the graphite nanoplates, where the benzylamine acts as a stabilizer. These Pt loaded graphite nanoplates were then prepared as an electrode, which significantly increased catalytic activity toward the methanol oxidation reaction, resulting in a 60% increment in mass activity compared to that of E-TEK.

Original languageEnglish
Pages (from-to)2169-2172
Number of pages4
JournalACS Applied Materials and Interfaces
Volume3
Issue number7
DOIs
Publication statusPublished - 2011 Jul 27

All Science Journal Classification (ASJC) codes

  • Materials Science(all)

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